If royal guards see food on the ground that's outside the range where their brains try to leash them back to their guard posts, they can get stuck walking a short distance back and forth between the two points until the food is removed or something else gets their attention. I'm not sure by I think this might mostly be an issue after dusk.
Steps to Reproduce
Set food a fair distance away from a royal guard's post, but close enough for them to see it and try to get it.
Set food a fair distance away from a royal guard's post, but close enough for them to see it and try to get it.
A developer has marked this issue as fixed. This means that the issue has been addressed in the current development build and will likely be in the next update.